Finding the Fourth Proportional to 42,817.76, 64,182.72 and 16,512.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,817.76 : 64,182.72 = 16,512.16 : x
2. Step 2: Convert to fraction form
   42,817.76/64,182.72 = 16,512.16/x
3. Step 3: Cross multiply
   42,817.76x = 64,182.72 × 16,512.16
4. Step 4: Simplify right side
   42,817.76x = 1,059,795,341.88
5. Step 5: Solve for x
   x = 1,059,795,341.88/42,817.76
6. Step 6: Final answer
   x = 24,751.30